Mercury vs Relay: Which is Better in 2026?
Choosing between Mercury and Relay comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Mercury wins this matchup. Our overall Accounting pick is QuickBooks. Our free Accounting pick is efile4Biz. Pick Relay if you need a free tier to start with.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Mercury
Business banking for startups. Open an account online in minutes
Best for you if:
- • You need something completely free
- • Banking built for startups
- • No monthly fees or minimums
Relay
Online business banking for clear cash flow, meticulous organization, and financial control.
Best for you if:
- • Provides online business banking with up to 20 checking accounts for cash flow clarity.
- • Offers integrated tools for bills, expenses, invoicing, and accounting integrations.
| At a Glance |  Mercury |  Relay |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Finance | Finance |
Rating | 4.6/5 | 4.2/5 |
Free plan | Yes | Yes |
Choose Mercury or Relay?
Choose Mercury if
Business banking for startups. Open an account online in minutes
- No fees
- Great UX
- API access
- You want a fully free tool (Relay requires payment)
Choose Relay if
Online business banking for clear cash flow, meticulous organization, and financial control.
- Good for small business
- No hidden fees
- Multiple accounts
- Budget matters (Free vs Free)
| Feature | Mercury | Relay |
|---|---|---|
| Pricing Model | Free | Freemium |
| User Rating | ★4.6/5 181 reviews | ★4.2/5 31 reviews |
| Categories | FinanceAccounting | FinanceAccounting |
In-Depth Analysis
Mercury
Business banking for startups. Open an account online in minutes
Mercury's Business Banking and Treasury tiers are exceptionally generous, offering core banking services and high-yield options for free.
Watch out
Treasury requires $500K minimum deposits
Strengths
- +No fees
- +Great UX
- +API access
Weaknesses
- -Limited credit options
- -US only
Key features
Relay
Online business banking for clear cash flow, meticulous organization, and financial control.
Relay's pricing is quite generous, especially with a robust free 'Starter' tier offering 20 checking accounts and 1.03% APY on savings.
Strengths
- +Good for small business
- +No hidden fees
- +Multiple accounts
- +Profit First friendly
- +Good mobile app
Weaknesses
- -Fewer features than Mercury
- -Limited integrations
- -No interest on checking
- -Smaller startup focus
- -Some limitations
Key features
Pricing: Mercury vs Relay
| Plan | Mercury | Relay |
|---|---|---|
| Tier 1 | Free Business Banking | Free Starter |
| Tier 2 | Free Treasury | $30 Grow |
| Tier 3 | $240 Personal | $90 Scale |
Pricing verified from each vendor's public pricing page. Compare in detail on Mercury pricing and Relay pricing.
Who Should Use What?
On a budget?
Mercury is free. Relay is freemium.
Go with: Mercury
Want the highest-rated option?
Mercury: 4.6/5 (181 reviews). Relay: 4.2/5 (31 reviews).
Go with: Mercury
Value user reviews?
Mercury: 181 reviews (4.6/5). Relay: 31 reviews (4.2/5).
Go with: Mercury
3 Questions to Help You Decide
What's your budget?
Mercury is free. Relay is freemium. Go with Mercury if free matters most.
What's your use case?
Both are finance tools. Compare their specific features to decide.
How important are ratings?
Mercury is rated higher: 4.6/5 vs 4.2/5.
Key Takeaways
Mercury
- Higher user rating: 4.6/5 vs 4.2/5
- Larger review base (181 reviews)
- Completely free
- Our pick for this comparison
Relay
- Choose if you want online business banking for clear cash flow, meticulous organization, and financial control
The Bottom Line
Mercury wins this matchup. Our overall Accounting pick is QuickBooks. Our free Accounting pick is efile4Biz.
Frequently Asked Questions
Is Mercury or Relay better?
Mercury is rated in our evaluation. Mercury is free and Relay is freemium.
What are Mercury and Relay used for?
Mercury: Business banking for startups. Open an account online in minutes. Relay: Online business banking for clear cash flow, meticulous organization, and financial control..
What does Mercury cost vs Relay?
Mercury is completely free. Relay is freemium (free tier + paid plans). Visit their websites for detailed pricing.